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Cake day: June 8th, 2023

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  • rektdeckard@lemmy.worldtoMemes@sopuli.xyzwat
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    23 days ago

    Best intuition I’ve heard for this is that “things” can’t move faster than light, but not everything is a “thing”.

    Imagine doing shadow puppets on the wall with a flashlight. You move the bunny left, shadow moves left. The further away the wall is, the faster the apparent speed of the shadow bunny. You might think that, far enough away and with a strong enough light, your shadow bunny would be racing across the sky faster than the speed of light – and the crazy thing is, you’d be correct! The shadow (absence of light) can move arbitrarily fast. But the light itself is moving at its normal constant speed from the flashlight out into space, perpendicular to the travel of the bunny, like a garden hose spraying water. The time it takes for the shadow to even begin to move is governed by the speed of light. No information can be communicated faster than light because the light travels at the speed of light to illuminate the places where the shadow isn’t.


  • Would a nuclear or fossil fuel turbine power plant just tear itself apart if disconnected from load at speed? I vaguely understand that the load provides a sort of magnetic resistance on the spinning generator. Without load they would they spin too fast? Or is it a matter of there not being any easy way to dump the power by doing something useless with it like just melting sand or smth?














  • But the problem exists if the average person can’t tell the difference or doesn’t care to verify it. Media literacy is at an all time low, at least in my country (guess). Without regulation, the presence and lack of labeling of AI content on social platforms can only further the decline.